Place the images dir and index.html into a webhost such as a free thing then edit the launcher.xdds to that webhost
then edit the index.html to your own wishes and if you need another background goto:
http://12.129.242.21/images/launcherbg84.jpg and change the number at launcherbg84.jpg to get another bg.
you must save that one to your webhost and change the name to launcherbg.jpg

<!-- 
	Random background picture selection added by Paradox 1-4-2008
	Name all of your background images launcherbgx.jpg where x = 1-90
	and put them in your /images folder
	if you wish to use more or less than 90 images,
	change 90 to the number of images you have
	on the line indicated in the index.html
-->